Ordish, G.  <br/><br/>
Biological methods in crop pest control: and introductory study  (Book) 

 - London  Constables  1967 
 - 242 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests--Biological control
<br/><br/><label>Universal Decimal Class. No.: </label>632.937 ORD  / 3848